The new reputation graph is nice and the gray line at 200rep is also useful.
However it would be great when the different forms of reputation (votes, accepted answers, bounties, ...) would be colored differently.
Especially the two groups of capped rep (votes, +2 for wiki edits, ...) and uncapped rep (accepted answers, bounties, ...) should be separated.

Here the idea: The capped rep should be colored differently and be always on bottom on the bar graph. This way someone can see how far it is away from the daily rep limit. The uncapped rep is on top and can peak over the 200rep limit. There should also be an indicator whether the rep cap was hit and therefore counts for the Epic and Legendary badge. For example the gray line at 200rep could be thicker for that day.

Also: The reputation lost because of the reputation limit could be displayed as gray bar on the very top of all other rep. Seeing this would be also a nice piece of information.

The reputation which disappeared because it has been used as a bounty should also be displayed accordantly and not simply subtracted. For example if someone received 180 rep on one day and sets out a bounty of 200 rep the graph should display two bars one positive to 180 to indicate the achieved rep of the day and one negative to -20 to indicate the final rep. The positive bar should be in a (slightly?) different color than normal to indicate its "received but given away" status. A simple example would be a yellow positive bar and an orange (instead red) negative one. If the total rep was positive (e.g. 225 rep - 200 rep bounty) there could be a normal positive bar with 25 points and then on top the yellow one from 25-225.
Otherwise bounties would look more like penalties.

I like this idea. It can provide some very interesting statistics, such as how often a user caps on days that they get past 200, or the average ratio of their reputation sources in general.
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Grace Note♦Mar 23 '11 at 16:15

2

Also, it would be nice to see rep lost through bounties, somehow
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SeamusMar 23 '11 at 17:02

When you implement it, make sure the colors work for the red-green-deficient ;) (I think Daniel's suggestion with orange, green and blue should work. Then again, the colors will probably differ from site to site.)
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doncherryJan 23 '12 at 11:39

Having per-site color schemes could be confusing to users of multiple sites, though, since for example on Gaming the upvotes are blueish and the bounties are reddish (though the accepts are still green).

Red is already used when you go into negative, actually. I think that when you're still positive, that upvotes and downvotes should just be grouped together in the same color, basically constituting a "net votes" system.
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Grace Note♦Mar 23 '11 at 16:29

1

Keep in mind that the color scheme of other stackexchange sites can be quite different to that on stackoverflow.
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Martin ScharrerMar 23 '11 at 16:34

I was just thinking about if there was some way to calculate what your rep would be if the limit weren't in place.
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GabeMar 25 '11 at 13:57

@Gabe: The simplest approximation is to look at the "total votes" from the reputation audit. Current value: 78040. So on the order of 780,000. (Some votes will be downvotes, some acceptances etc.)
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Jon SkeetMar 25 '11 at 13:59

Yes, but I would suspect that you have a significant amount from bounties as well. You'd have to search for all the 9 rows and add those in.
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GabeMar 25 '11 at 14:05

@Gabe: I don't get many bounties, actually... bounties are usually put on questions that have spent a long time unanswered... whereas if I can answer a question (and it doesn't already have a good answer) I've normally answered it within 24 hours.
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Jon SkeetMar 25 '11 at 14:17

There should be a badge for lost rep. Like when you loose more rep on one day than you actually get. Happened two me once or twice (on tex.sx). Ok, you might get annoyed getting one of these every day. :-)
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Martin ScharrerMar 31 '11 at 21:39